JP3348099B2 - How to limit engine braking torque - Google Patents
How to limit engine braking torqueInfo
- Publication number
- JP3348099B2 JP3348099B2 JP31169590A JP31169590A JP3348099B2 JP 3348099 B2 JP3348099 B2 JP 3348099B2 JP 31169590 A JP31169590 A JP 31169590A JP 31169590 A JP31169590 A JP 31169590A JP 3348099 B2 JP3348099 B2 JP 3348099B2
- Authority
- JP
- Japan
- Prior art keywords
- vehicle
- engine
- traveling
- driving
- curve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/12—Introducing corrections for particular operating conditions for deceleration
- F02D41/123—Introducing corrections for particular operating conditions for deceleration the fuel injection being cut-off
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D17/00—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling
- F02D17/04—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling rendering engines inoperative or idling, e.g. caused by abnormal conditions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K28/00—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions
- B60K28/10—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the vehicle
- B60K28/16—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the vehicle responsive to, or preventing, skidding of wheels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/008—Controlling each cylinder individually
- F02D41/0087—Selective cylinder activation, i.e. partial cylinder operation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/50—Input parameters for engine control said parameters being related to the vehicle or its components
- F02D2200/501—Vehicle speed
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、内燃機関の燃料供給量制御方法、更に詳細
には、内燃機関を搭載した自動車のエンジン制動トルク
（エンジンブレーキのときの制動トルク）を制御する方
法に関するものである。The present invention relates to a method for controlling a fuel supply amount of an internal combustion engine, and more particularly, to an engine braking torque of an automobile equipped with an internal combustion engine (braking torque during engine braking). ) Is controlled.
［従来の技術］ 燃料噴射装置及び最近のキャブレター装置において
は、エンジンブレーキ運転（減速運転）にあるエンジン
への燃料供給を遮断して、燃料消費と有害物質放出を減
少させることが行われている。2. Description of the Related Art In a fuel injection device and a recent carburetor device, a fuel supply to an engine in an engine braking operation (deceleration operation) is cut off to reduce fuel consumption and emission of harmful substances. .
ドイツ特許公開公報DE−OS3210512号には、内燃機関
の温度が所定温度以上である場合にのみエンジンブレー
キ運転時の燃料供給の遮断を行わせることが記載されて
いる。そのために、吸気温度及び／あるいは自動車のボ
ディの領域に配置された温度センサの出力信号を求める
ようにしている。温度が低いと道路に雪や氷が付くこと
があって、その場合には内燃機関のエンジンブレーキ運
転状態で生じる制動効果がマイナスの作用を及ぼすこと
がある。というのは、エンジン制動トルクが大きいと、
スリップないしハンドルを取られる横搖れが生じる危険
があるからである。従って温かい季節だけ、すなわち一
年のうち余り長くない期間だけしか、エンジンブレーキ
運転時の燃料カットが行われないので、燃料消費が増大
することになる。DE-OS 32 105 512 describes that the fuel supply is interrupted during an engine braking operation only when the temperature of the internal combustion engine is equal to or higher than a predetermined temperature. For this purpose, the temperature of the intake air and / or the output signal of a temperature sensor arranged in the region of the body of the vehicle are determined. If the temperature is low, snow or ice may adhere to the road, in which case the braking effect generated in the engine braking operation state of the internal combustion engine may have a negative effect. Because if the engine braking torque is large,
This is because there is a danger of slipping or rolling of the steering wheel being removed. Therefore, only during the warm season, that is, during a period that is not too long in one year, the fuel cut during the engine braking operation is performed, so that the fuel consumption increases.
さらにドイツ特許公開公報DE−OS3808692には、エン
ジンブレーキのときの制動トルクが大きくなりすぎるの
を避けるためにエンジンブレーキ運転時に生じる制動ト
ルクを、駆動車輪の連続的ブロックを防止する所定の値
に制限することが記載されている。内燃機関の回転数に
関係する噴射残量が制御されて、制動トルクが許容でき
ない大きい値に達することのないようにされる。噴射残
量を時間に従って減少させ、あるいは増加させること
は、ランプ（傾斜）状に行われる。噴射残量を時間的に
ランプ状に増減させる度合は、さらにエンジン駆動パラ
メータ、すなわち温度、速度及びギヤの位置によっても
変化させることができる。Further, German Patent Publication DE-OS3808692 states that in order to prevent the braking torque during engine braking from becoming too large, the braking torque generated during engine braking is limited to a predetermined value that prevents continuous blocking of the drive wheels. Is described. The remaining injection quantity, which is related to the rotational speed of the internal combustion engine, is controlled so that the braking torque does not reach an unacceptably high value. Decreasing or increasing the remaining amount of injection with time is performed in a ramp (inclined) manner. The degree to which the remaining injection quantity is ramped up and down over time can also be varied by engine drive parameters, i.e., temperature, speed, and gear position.
国際出願WO 89/04782においては、カーブ走行を検出
する方法が記載されている。そのために、対角線方向に
対向している車輪の速度信号の差とこの差の時間変化信
号が形成される。このどちらかの信号が所定のしきい値
を越えると、カーブ走行検出信号が出力される。International application WO 89/04782 describes a method for detecting curve running. For this purpose, a difference between the speed signals of the wheels opposite in diagonal direction and a time-varying signal of this difference are formed. When either of these signals exceeds a predetermined threshold, a curve traveling detection signal is output.
［発明が解決しようとする課題］ 本発明の課題は上記のような方法において、走行安全
性を著しく向上させることが可能になり、しかも燃料を
著しく節約することができ、かつ有害物質の放出を減少
させることができる、エンジン制動トルクを制限する方
法を提供することである。特に、本発明は、エンジンブ
レーキ運転状態において危険な走行状態が発生しないよ
うにすることを課題としている。[Problems to be Solved by the Invention] An object of the present invention is to make it possible to remarkably improve the driving safety in the above-described method, and to remarkably save fuel, and reduce emission of harmful substances. It is to provide a method of limiting engine braking torque, which can be reduced. In particular, an object of the present invention is to prevent a dangerous traveling state from occurring in an engine braking operation state.
［課題を解決するための手段］ 上記の課題は、エンジンブレーキ運転時における内燃
機関の燃料供給量制御方法であって、エンジンブレーキ
運転であることが、アクセルペダルがアイドリング位置
にあること、あるいはアクセルペダル位置を戻したこと
により検出され、エンジンブレーキ運転時の燃料供給量
が車両の現在の走行状態に従って定められる内燃機関の
燃料供給量制御方法において、前記現在の走行状態によ
り少なくとも車両のカーブ走行と直線走行が区別され、
前記エンジンブレーキ運転時の燃料供給量は、カーブ走
行であることが識別されたときは、直線走行であること
が識別されたときよりも多くされる構成により解決され
る。[Means for Solving the Problems] The above-mentioned problem is a method for controlling the fuel supply amount of an internal combustion engine during an engine brake operation, in which the engine brake operation is performed, that an accelerator pedal is in an idling position, In the fuel supply amount control method for the internal combustion engine, which is detected by returning the pedal position and the fuel supply amount during the engine braking operation is determined in accordance with the current traveling state of the vehicle, at least the vehicle travels in a curve according to the current traveling state. Straight running is distinguished,
This problem is solved by a configuration in which the amount of fuel supplied during the engine brake operation is increased when it is determined that the vehicle is traveling on a curve, compared to when it is determined that the vehicle is traveling on a straight line.
［作用］ 本発明によれば、常に遅れなく危険な走行状態が発生
しない物理的限界領域の近傍にまで移行することができ
る。常に最小量の燃料供給が保証されているが、この燃
料供給量は、走行安全性が保証されている場合には、エ
ンジンブレーキ運転時の燃料カット時の量まで減少させ
ることができる。危険を伴う走行状態が発生した場合に
は、エンジンブレーキ運転時の燃料カットは行われな
い。[Operation] According to the present invention, it is possible to always shift to the vicinity of the physical limit region where a dangerous traveling state does not occur without delay. A minimum amount of fuel supply is always guaranteed, but this fuel supply amount can be reduced to the amount at the time of fuel cut during engine brake operation if traveling safety is guaranteed. When a dangerous driving state occurs, the fuel cut during engine braking operation is not performed.
好ましくは、走行状態を検出するために走行速度及び
／あるいはエンジン回転数及び／あるいはギヤの位置及
び／あるいはカーブ走行か否か及び／あるいは横加速度
があるか否か及び／あるいはタイヤ、特に駆動車輪のタ
イヤの摩擦値の量及び／あるいはタイヤのスリップがあ
るか否かが検出される。カーブ走行／横加速度を識別す
ることによって、この走行状況で存在する摩擦値をほぼ
物理的な限界まで利用することが可能になる。同様なこ
とが、通常の状態ではカーブ走行とは異なるエンジン制
動トルクが作用する直線走行の場合にも当てはまる。Preferably, the running speed and / or the engine speed and / or the gear position and / or whether the vehicle is traveling on a curve and / or whether there is a lateral acceleration or not and / or the tires, especially the driving wheels, for detecting the running condition The amount of friction value of the tire and / or whether there is a tire slip. The identification of the curve / lateral acceleration makes it possible to use the friction values present in this driving situation almost to the physical limit. The same applies to a case of straight running in which an engine braking torque different from that of curve running acts in a normal state.
本発明の他の実施例によれば、エンジントルクはエン
ジンブレーキ運転時の燃料カット時の値まで減少され
る。According to another embodiment of the present invention, the engine torque is reduced to the value at the time of fuel cut during engine braking operation.
エンジントルクをゆっくりと減少させるために、本発
明の好ましい実施例によれば、全てのシリンダ全部に対
して燃料をカットするのではなく個別のシリンダに対し
て燃料カットが行われる。To reduce engine torque slowly, according to a preferred embodiment of the present invention, fuel cuts are made on individual cylinders rather than on all cylinders.
エンジンブレーキ運転においてエンジントルクを減少
させる場合、あるいはエンジンブレーキ運転において燃
料カットを行なうために、駆動形式が考慮される。すな
わち前輪駆動か後輪駆動かあるいは全輪駆動かに従って
それに応じてエンジントルクの減少を調節し、あるいは
直接エンジンブレーキ運転時の燃料カットが行われる。When the engine torque is reduced in the engine braking operation, or the fuel cut is performed in the engine braking operation, the driving type is considered. That is, the reduction of the engine torque is adjusted according to the front wheel drive, the rear wheel drive or the all-wheel drive, or the fuel cut during the engine brake operation is performed directly.
影響の大きい走行状態としては、すでに述べたように
カーブ走行であるか否かである。この状態は、ステアリ
ング角度センサによって検出することができる。あるい
は、車輪に設けた適当なセンサによって検出することも
可能である。好ましくはカーブ走行か否かの識別を摩擦
値の量の検出と組合せることができる。さらにまた、ア
イドリング回転数の上昇と組み合わせることができる。
その場合、エンジン制動トルクの減少は、アイドリング
回転数を上昇させ、「通常の」アイドリング回転数の燃
料流量値を有するアイドリング回転数に達するまで行な
い、場合によってはさらにエンジンブレーキ運転時の燃
料カットになるまで行なう。エンジン制動トルクの減少
は連続的あるいは断続的に行うことができる。The traveling state having a large influence is, as described above, whether or not the vehicle is traveling on a curve. This state can be detected by a steering angle sensor. Alternatively, it is also possible to detect by a suitable sensor provided on the wheel. Preferably, the determination of whether or not the vehicle is traveling on a curve can be combined with the detection of the amount of the friction value. Furthermore, it can be combined with an increase in the idling speed.
In this case, the engine braking torque is reduced by increasing the idling speed until reaching an idling speed having a fuel flow value of "normal" idling speed, and in some cases further reducing the fuel during engine braking operation. Repeat until The engine braking torque can be reduced continuously or intermittently.
好ましくは、走行状態を検出するために、まずアクセ
ルペダルの位置を検出して駆動状態を識別し、次にカー
ブ走行か直線走行かを検出する。さらに、エンジン回転
数とギヤの位置を考慮してエンジン制動トルクの検出を
行う。さらに、駆動車輪の摩擦値の量及び／あるいは駆
動車輪のスリップ及び／あるいは駆動形式を考慮する。
さらに、それぞれ走行状態の検出結果に従って、問題の
ない走行状態であればエンジンブレーキ運転時の燃料カ
ットを行ない、物理的限界に近い走行状態であればエン
ジントルクを連続的あるいは段階的に減少し、問題とな
る走行状態のときはエンジンブレーキ運転時の燃料カッ
トを行わないようにする。Preferably, in order to detect the traveling state, first, the position of the accelerator pedal is detected to identify the driving state, and then it is detected whether the vehicle is traveling on a curve or straight. Further, the engine braking torque is detected in consideration of the engine speed and the gear position. In addition, the amount of friction value of the drive wheels and / or the slip and / or type of drive of the drive wheels are taken into account.
Further, according to the detection results of the driving state, if there is no problem in the driving state, the fuel cut at the time of engine braking operation is performed, and if the driving state is close to the physical limit, the engine torque is reduced continuously or stepwise. Do not cut the fuel during engine braking when the vehicle is running in a problematic state.
全体として、本発明の手段によれば、ほとんど付加コ
ストを必要とせずに、物理的限界領域において走行安全
性を著しく向上させることができる。Overall, according to the measures of the present invention, driving safety can be significantly improved in the physical marginal area with little additional cost.
［実施例］ 以下、図面を用いて本発明を詳細に説明する。図は、
内燃機関を搭載した自動車のエンジンブレーキ運転状態
においてエンジンのトルクを減少させる種々の条件を示
すフローチャート図で、エンジントルクは好ましくはエ
ンジンブレーキ運転時の燃料カット時の値まで減少され
る。EXAMPLES Hereinafter, the present invention will be described in detail with reference to the drawings. The figure shows
FIG. 4 is a flowchart showing various conditions for reducing the engine torque of an automobile equipped with an internal combustion engine in an engine braking operation state. The engine torque is preferably reduced to a value at the time of fuel cut during engine braking operation.
図は内燃機関を搭載した自動車のエンジンブレーキ時
の制動トルクを制限する本発明方法を示すものである。The figure shows the method of the present invention for limiting the braking torque during engine braking of an automobile equipped with an internal combustion engine.
まず、自動車の走行状態の検出と評価が行われる。出
発点のステップ１においては不図示の自動車のアクセル
ペダルの位置を検出する。エンジンブレーキ運転におい
て燃料をカットするために、あるいはエンジンブレーキ
運転においてエンジントルクを減少させるために、アク
セルペダルがアイドリング位置にあるか否かが検出され
る。アクセルペダルがアイドリング位置にない場合には
燃料カットは行われない。しかし、アクセルペダル位置
を戻した場合にエンジントルクを減少させ、あるいは燃
料カットを行なうようにしてもよい。First, the detection and evaluation of the running state of the automobile are performed. In step 1 of the starting point, the position of the accelerator pedal of the vehicle (not shown) is detected. It is detected whether the accelerator pedal is in the idling position in order to cut the fuel in the engine braking operation or to reduce the engine torque in the engine braking operation. When the accelerator pedal is not at the idling position, fuel cut is not performed. However, when the accelerator pedal position is returned, the engine torque may be reduced or the fuel cut may be performed.
ステップ２においては自動車の瞬間的な走行状態が検
出される。これは走行状態量を検出処理することによっ
て行われる。特にカーブ走行状態についてはステアリン
グ角度が検出される。その上に、あるいはその代わりに
ステアリング角度を検出せずに自動車の車輪の速度を比
較することによってもカーブ走行の検出を行うことがで
きる。他の走行状態量としては走行速度が用いられる。
それに加えて、あるいはその代わりに横加速度センサを
用いて検出した自動車の横加速度を検出して走行状態を
識別することもできる。従ってステップ２においては走
行状況として直線走行３であるかあるいはカーブ走行４
であるかが検出される。それぞれの結果がステップ５に
おいて処理されてエンジン制動トルクが求められる。そ
のためにエンジン回転数ｎとギヤ比（変速比）が参照さ
れる。ギヤ比はギヤの位置を検出することによって求め
られる。エンジン制動トルクを検出するために、場合に
よってはさらに冷却剤温度、及び／あるいはオイル温度
などのエンジン駆動状態を参照することができる。In step 2, the instantaneous running state of the vehicle is detected. This is performed by detecting the traveling state quantity. In particular, the steering angle is detected in the curve running state. Additionally or alternatively, the detection of a curve run can be performed by comparing the speed of the wheels of the vehicle without detecting the steering angle. The running speed is used as another running state quantity.
Additionally or alternatively, the running state can be identified by detecting the lateral acceleration of the vehicle detected using a lateral acceleration sensor. Therefore, in step 2, the traveling condition is straight traveling 3 or curved traveling 4
Is detected. Each result is processed in step 5 to determine the engine braking torque. For this purpose, the engine speed n and the gear ratio (gear ratio) are referred to. The gear ratio is determined by detecting the position of the gear. In order to detect the engine braking torque, the driving state of the engine such as the coolant temperature and / or the oil temperature may be referred to in some cases.
次のステップ６においては走行状態を検出するため
に、好ましくは自動車の駆動形式が参照される。すなわ
ち前輪駆動の自動車か、後輪駆動か全輪駆動かが検出さ
れる。他の入力量として場合によっては摩擦値を検出
し、駆動車輪にスリップが発生している場合にはそのス
リップを参照する。In the next step 6, the drive type of the motor vehicle is preferably referred to in order to detect the driving state. That is, it is detected whether the vehicle is driven by front wheels, rear wheel drive or all-wheel drive. In some cases, a friction value is detected as another input amount, and when a slip occurs on the drive wheel, the slip is referred to.
ステップ６の結果として、問題がなく危険でない走行
状態７か、物理的な限界に近い走行状態８か、あるいは
問題となる危険な走行状態９かが判明する。As a result of step 6, it is determined whether there is no problem and the driving state 7 is not dangerous, the driving state 8 is close to the physical limit, or the dangerous driving state 9 is a problem.
問題のない走行状態７の場合には、エンジンブレーキ
運転時の燃料カットを行なうことができる。物理的な限
界に近い走行状態８が検出された場合には、部分的ない
し段階的にエンジンブレーキ運転時の燃料カットが行わ
れる。これは例えばシーケンシャル噴射を介して、すな
わち個々のシリンダの燃料をカットして行われる。すな
わち、全体のシリンダ全てに対して同時に燃料をカット
するのではなく、個別に燃料をカットし、滑らかなエン
ジントルクの減少を行なう。問題となる走行状態９が検
出された場合には、燃料カットは禁止される。図におい
てはエンジンブレーキ運転時の燃料カットは符号10で示
されており、部分的なエンジンブレーキ運転時の燃料カ
ットは11で示され、エンジンブレーキ運転時の燃料カッ
トの禁止は12で示されている。In the case of the driving state 7 where there is no problem, the fuel can be cut during the engine brake operation. When the driving state 8 close to the physical limit is detected, the fuel cut during the engine braking operation is performed partially or stepwise. This takes place, for example, via sequential injection, ie by cutting off the fuel in the individual cylinders. That is, instead of cutting fuel for all the cylinders at the same time, the fuel is cut individually to smoothly reduce the engine torque. When the driving state 9 in question is detected, the fuel cut is prohibited. In the figure, the fuel cut during engine brake operation is indicated by reference numeral 10, the fuel cut during partial engine brake operation is indicated by 11, and the prohibition of fuel cut during engine brake operation is indicated by 12. I have.
［発明の効果］ 以上の説明から明らかなように、本発明方法によれ
ば、車両がカーブ走行であることが識別されたときは、
エンジンブレーキ運転時の燃料供給量が、直線走行のと
きよりも、多くされるので、カーブ走行時のエンジン制
動トルクを減少させることができ、エンジンブレーキ運
転時でカーブ走行時の走行安全性が向上する、という優
れた効果が得られる。[Effects of the Invention] As is clear from the above description, according to the method of the present invention, when it is determined that the vehicle is traveling on a curve,
Since the amount of fuel supplied during engine braking is increased compared to straight driving, engine braking torque during curve driving can be reduced, and driving safety during curve driving during engine braking is improved. To obtain an excellent effect.
第１図は内燃機関を搭載した自動車のエンジンブレーキ
運転においてエンジントルクを減少させる種々の条件を
示すフローチャート図である。 ３……直線走行 ４……カーブ走行 ７……問題とならない走行状態 ８……物理的限界領域に近い走行状態 ９……問題となる走行状態 10……燃料カット 11……部分的ないし段階的な燃料カット 12……燃料カット禁止FIG. 1 is a flowchart showing various conditions for reducing engine torque in engine braking operation of an automobile equipped with an internal combustion engine. 3: Straight running 4: Curve running 7: Non-problematic running condition 8: Running condition close to the physical limit area 9 ... Problematic running condition 10: Fuel cut 11: Partial or stepwise Fuel cut 12 ... Fuel cut prohibition
フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ｆ０２Ｄ 45/00 Ｆ０２Ｄ 45/00 ３１０Ｍ ３３０ ３３０ ３４５ ３４５Ｇ (58)調査した分野(Int.Cl.7，ＤＢ名) F02D 29/02 B60K 28/16 F02D 13/04 F02D 41/12 F02D 45/00 Continuation of the front page (51) Int.Cl. 7 identification code FI F02D 45/00 F02D 45/00 310M 330 330 330 345 345G (58) Field surveyed (Int.Cl. 7 , DB name) F02D 29/02 B60K 28 / 16 F02D 13/04 F02D 41/12 F02D 45/00
Claims (6)
の燃料供給量制御方法であって、エンジンブレーキ運転
であることが、アクセルペダルがアイドリング位置にあ
ること、あるいはアクセルペダル位置を戻したことによ
り検出され、エンジンブレーキ運転時の燃料供給量が車
両の現在の走行状態に従って定められる内燃機関の燃料
供給量制御方法において、 前記現在の走行状態により少なくとも車両のカーブ走行
と直線走行が区別され、 前記エンジンブレーキ運転時の燃料供給量は、カーブ走
行であることが識別されたときは、直線走行であること
が識別されたときよりも多くされることを特徴とする内
燃機関の燃料供給量制御方法。1. A method for controlling a fuel supply amount of an internal combustion engine during an engine brake operation, wherein an engine brake operation is detected when an accelerator pedal is at an idling position or when the accelerator pedal position is returned. A fuel supply amount control method for an internal combustion engine in which a fuel supply amount during an engine braking operation is determined according to a current traveling state of the vehicle, wherein at least a curve traveling and a straight traveling of the vehicle are distinguished by the current traveling state; A fuel supply amount control method for an internal combustion engine, wherein a fuel supply amount during operation is increased when it is determined that the vehicle is traveling on a curve, than when it is determined that the vehicle is traveling on a straight line.
度及び／あるいはエンジン回転数及び／あるいはギヤの
位置及び／あるいは横加速度があるか否か及び／あるい
はタイヤのスリップがあるか否かを検出することを特徴
とする請求項１に記載の方法。2. The method according to claim 1, further comprising determining whether the vehicle is running at a given speed and / or an engine speed and / or a gear position and / or a lateral acceleration. The method of claim 1, wherein
走行にあるかを検出するためにステアリング角度センサ
の信号が用いられることを特徴とする請求項１に記載の
方法。3. The method according to claim 1, wherein the signal of the steering angle sensor is used to detect whether the vehicle is traveling on a curve or in a straight line.
走行にあるかを検出するために車輪の回転速度が比較さ
れることを特徴とする請求項１に記載の方法。4. The method according to claim 1, wherein the rotational speeds of the wheels are compared to determine whether the vehicle is on a curve or in a straight line.
輪駆動、後輪駆動あるいは全輪駆動かの駆動形式に関係
することを特徴とする請求項１から４のいずれか１項に
記載の方法。5. The method according to claim 1, wherein the amount of fuel supplied during the operation of the engine brake is related to a drive mode of front-wheel drive, rear-wheel drive or all-wheel drive. .
ップ及び／あるいは前輪駆動、後輪駆動あるいは全輪駆
動かの駆動形式を参照することを特徴とする請求項１か
ら５のいずれか１項に記載の方法。6. The method according to claim 1, wherein when the driving state is detected, a slip of a driving wheel and / or a driving mode of front wheel driving, rear wheel driving or all-wheel driving is referred to. The method described in the section.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3942862.1 | 1989-12-23 | ||
| DE3942862A DE3942862C2 (en) | 1989-12-23 | 1989-12-23 | Procedure for engine drag torque limitation |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11258180A Division JP2000073811A (en) | 1989-12-23 | 1999-09-13 | Control method for fuel feed quantity for internal combustion engine |
| JP2000191966A Division JP2001032735A (en) | 1989-12-23 | 2000-06-27 | Controlling method of fuel feeding amount for internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03194138A JPH03194138A (en) | 1991-08-23 |
| JP3348099B2 true JP3348099B2 (en) | 2002-11-20 |
Family
ID=6396375
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31169590A Expired - Fee Related JP3348099B2 (en) | 1989-12-23 | 1990-11-19 | How to limit engine braking torque |
| JP11258180A Pending JP2000073811A (en) | 1989-12-23 | 1999-09-13 | Control method for fuel feed quantity for internal combustion engine |
| JP2000191966A Pending JP2001032735A (en) | 1989-12-23 | 2000-06-27 | Controlling method of fuel feeding amount for internal combustion engine |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11258180A Pending JP2000073811A (en) | 1989-12-23 | 1999-09-13 | Control method for fuel feed quantity for internal combustion engine |
| JP2000191966A Pending JP2001032735A (en) | 1989-12-23 | 2000-06-27 | Controlling method of fuel feeding amount for internal combustion engine |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0434970B1 (en) |
| JP (3) | JP3348099B2 (en) |
| KR (1) | KR0155547B1 (en) |
| DE (2) | DE3942862C2 (en) |
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| EP0525234B1 (en) * | 1991-07-30 | 1995-09-20 | Siemens Aktiengesellschaft | Control circuit for the propulsion unit of an automotive vehicle |
| DE4302500B4 (en) * | 1992-02-12 | 2007-12-27 | Volkswagen Ag | Method for operating a motor vehicle and motor vehicle |
| DE4226940A1 (en) * | 1992-08-14 | 1994-02-17 | Teves Gmbh Alfred | Method and circuit arrangement for reducing the adverse effects of engine drag torque |
| DE4332445C2 (en) * | 1993-09-23 | 2002-06-13 | Bayerische Motoren Werke Ag | Method for controlling the idle actuator of an internal combustion engine |
| DE19547717B4 (en) * | 1995-12-20 | 2006-07-13 | Robert Bosch Gmbh | Method and device for mitigating load change reactions in a motor vehicle |
| JP3358452B2 (en) * | 1996-07-22 | 2002-12-16 | 日産自動車株式会社 | Vehicle engine brake control device |
| KR100372781B1 (en) * | 1999-11-08 | 2003-02-20 | 주식회사 만도 | Method for controlling engine torque in a automobile |
| KR20010094753A (en) | 1999-12-03 | 2001-11-01 | 클라우스 포스, 게오르그 뮐러 | Method for influencing a torque conveyed by a driving motor of a motor vehicle |
| DE10348249A1 (en) * | 2003-10-16 | 2005-05-12 | Bosch Gmbh Robert | Detection device for detecting the desire of a driver of a motor vehicle after a certain total thrust torque of the vehicle |
| KR100588541B1 (en) * | 2003-11-17 | 2006-06-14 | 현대자동차주식회사 | Method and system for controlling an engine of a vehicle while an upshift of an automatic transmission thereof |
| DE102006042606B4 (en) * | 2006-09-11 | 2012-04-12 | Zf Friedrichshafen Ag | Method for controlling the engine idling shutdown in a vehicle with hybrid drive and automatic start-stop |
| US9475388B2 (en) | 2008-05-14 | 2016-10-25 | GM Global Technology Operations LLC | Drag torque request security diagnostic systems and methods |
| KR102140318B1 (en) * | 2014-06-25 | 2020-07-31 | 콘티넨탈 오토모티브 시스템 주식회사 | Vehicle control apparatus and control method of engine output torque thereof |
| KR101684535B1 (en) * | 2015-06-19 | 2016-12-08 | 현대자동차 주식회사 | Apparatus and method for controlling torque reduction of hybrid vehicle |
| DE102018207079A1 (en) | 2018-05-07 | 2019-11-07 | Audi Ag | Method for controlling a drive motor in a motor vehicle |
| CN113202646A (en) * | 2021-05-31 | 2021-08-03 | 东风商用车有限公司 | Engine overspeed protection control method, device, storage medium and system |
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| DE2139230B2 (en) * | 1971-08-05 | 1975-06-26 | Teldix Gmbh, 6900 Heidelberg | Device for automatically influencing the set engine torque of a vehicle |
| DE2334264C3 (en) * | 1973-07-05 | 1980-01-24 | Nissan Motor Co., Ltd., Yokohama, Kanagawa (Japan) | Electronically controlled fuel injection system for a rotary piston internal combustion engine |
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| DE3328219A1 (en) * | 1983-08-04 | 1985-02-21 | Bayerische Motoren Werke AG, 8000 München | Device for reducing the braking torque of internal combustion engines, especially diesel engines, in motor vehicles in overrun conditions |
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| DE3719323A1 (en) * | 1987-06-10 | 1988-12-29 | Bosch Gmbh Robert | DEVICE FOR ACTUATING THE THROTTLE VALVE OF AN INTERNAL COMBUSTION ENGINE |
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-
1989
- 1989-12-23 DE DE3942862A patent/DE3942862C2/en not_active Expired - Fee Related
-
1990
- 1990-11-19 JP JP31169590A patent/JP3348099B2/en not_active Expired - Fee Related
- 1990-11-20 DE DE90122130T patent/DE59004688D1/en not_active Expired - Fee Related
- 1990-11-20 EP EP90122130A patent/EP0434970B1/en not_active Expired - Lifetime
- 1990-12-21 KR KR1019900021275A patent/KR0155547B1/en not_active IP Right Cessation
-
1999
- 1999-09-13 JP JP11258180A patent/JP2000073811A/en active Pending
-
2000
- 2000-06-27 JP JP2000191966A patent/JP2001032735A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000073811A (en) | 2000-03-07 |
| JPH03194138A (en) | 1991-08-23 |
| EP0434970B1 (en) | 1994-02-23 |
| DE3942862C2 (en) | 2001-04-12 |
| DE3942862A1 (en) | 1991-06-27 |
| JP2001032735A (en) | 2001-02-06 |
| KR0155547B1 (en) | 1998-11-16 |
| EP0434970A1 (en) | 1991-07-03 |
| KR910012517A (en) | 1991-08-08 |
| DE59004688D1 (en) | 1994-03-31 |
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